/*
 * @(#)AbstractCellEditor.java   09/09/13
 *
 * Copyright (C) 2009 Ecole des Mines d'Ales
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Contact: yulinz88@gmail.com
 *
 *
 *
 */



package fr.ema.arch3d.gea.mainGUI.TreeTable;

/*
* %W% %E%
*
* Copyright 1997, 1998 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
*   notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above
*   copyright notice, this list of conditions and the following
*   disclaimer in the documentation and/or other materials
*   provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any
* kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
* EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY
* DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR
* RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR
* ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE
* FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,
* SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF
* THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*
* You acknowledge that this software is not designed, licensed or
* intended for use in the design, construction, operation or
* maintenance of any nuclear facility.
 */
import java.util.EventObject;

import javax.swing.CellEditor;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.event.EventListenerList;

/**
 * @version %I% %G%
 *
 * A base class for CellEditors, providing default implementations for all
 * methods in the CellEditor interface and support for managing a series
 * of listeners.
 *
 * @author Philip Milne
 */
public class AbstractCellEditor implements CellEditor {

    /** Field description */
    protected EventListenerList listenerList = new EventListenerList();

    public Object getCellEditorValue() {
        return null;
    }

    public boolean isCellEditable(EventObject e) {
        return true;
    }

    public boolean shouldSelectCell(EventObject anEvent) {
        return false;
    }

    public boolean stopCellEditing() {
        return true;
    }

    public void cancelCellEditing() {}

    public void addCellEditorListener(CellEditorListener l) {
        listenerList.add(CellEditorListener.class, l);
    }

    public void removeCellEditorListener(CellEditorListener l) {
        listenerList.remove(CellEditorListener.class, l);
    }

    /**
     * Notify all listeners that have registered interest for
     * notification on this event type.
     * @see EventListenerList
     */
    protected void fireEditingStopped() {

        // Guaranteed to return a non-null array
        Object[] listeners = listenerList.getListenerList();

        // Process the listeners last to first, notifying
        // those that are interested in this event
        for (int i = listeners.length - 2; i >= 0; i -= 2) {
            if (listeners[i] == CellEditorListener.class) {
                ((CellEditorListener) listeners[i + 1]).editingStopped(new ChangeEvent(this));
            }
        }
    }

    /**
     * Notify all listeners that have registered interest for
     * notification on this event type.
     * @see EventListenerList
     */
    protected void fireEditingCanceled() {

        // Guaranteed to return a non-null array
        Object[] listeners = listenerList.getListenerList();

        // Process the listeners last to first, notifying
        // those that are interested in this event
        for (int i = listeners.length - 2; i >= 0; i -= 2) {
            if (listeners[i] == CellEditorListener.class) {
                ((CellEditorListener) listeners[i + 1]).editingCanceled(new ChangeEvent(this));
            }
        }
    }
}
